Answer:
A
Explanation:
hydrogen bond always occur between H and O
Number 1: metabolism isall of the physical components an organism needs to survive
To calculate the mean all you have to do is add all the numbers from the data set and then divide the answer between the number of data set. For example, if you data set is 2,3,4,5,6,then you add 2+3+4+5+6=20 Now you divide 20 between the total number of data, so from 2 to 6 you have 5 numbers. You divide 20/5 and that that is equal to 4.
Since you did not post your data set I can not tell you exactly the answer but you can use this information to walk you through it.
I believe A. Nitrogen is the most abundant Gas.
I think it is A because they can just destroy it but D is finding something natural to kill it off but it is GM so it wouldn't help so A
